Fabric Code: tpr316

Tanga feldspathic pyroxenic

Group C2, feldspathic stream sand with clinopyroxene, without biotite mica. Indigenous to Tanga.

Fabric Class:

Feldspathic Pyroxenic: Dominated by feldspar inclusions, with pyroxenes.

Postarc: Clinopyroxenes, plagioclase, and lithics of basalts or shoshonite (a basaltic trachyandesite), dominate.

Sites:

Mineral and Rock Abundances

None (0) Minor (1) Few (2) Common (3) Frequent (4) Major (5) Very Dominant (6)
0% 0-5% 5-15% 15-30 % 30-50% 50-70% 70-100%

Name Cal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ SpinelIg./Met. Rocks Sed. Rocks Grog Lithics/ Region
Max 0 0 6 3 0 2 0 0 0 0 0 2 0 0 vitric
Min 0 0 5 1 0 2 0 0 0 0 0 1 0 0 Bismarck

Representative slides:

Slide Site Possible OriginCal. QuartzFeldspar Pyroxene Amphibole Opaques OlivineBiotite Muscovite Epidote Garnet/ Spinel Ig./Met. Rocks Sed. Rocks Grog Lithics
WD_33_4 Boeng Islet (Tanga) Tanga not Boeng 0 0 5 3 0 2 0 0 0 0 0 1 0 0 vitric
WD_33_5 Lif (Tanga) Tanga 0 0 6 1 0 2 0 0 0 0 0 2 0 0 vitric
WD_33_3 Malendok Islet (Tanga) Tanga 0 0 5 2 0 1 0 0 0 0 0 1 0 0 vitric

WD_33_4

Boeng_EUX17 Boeng_EUX17
Sherd EUX17 from Boeng islet (Tanga). Slide WD_33_4 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.

Matambek site. Feldspathic temper sand that contains abundant clinopyroxene no biotite.


WD_33_5

Lif_ETM3917 Lif_ETM3917
Sherd ETM3917 from Lif (Tanga). Slide WD_33_5 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image (user: Guest pwd: Guest) or full slide in VIMIPO. Imaged by K. Hardy and M. Leclerc, ANU.

Angkikita site. Feldspathic temper sand that contains abundant clinopyroxene and no biotite.


WD_33_3

Maledok_ETR7 Maledok_ETR7
Sherd ETR7 from Malendok islet (Tanga). Slide WD_33_3 from Dickinson Collection, Bishop Museum. x4 Magnification PPL (left) XPL (right). Scale bar: 0.5mm. High resolution image in VIMIPO (user: Guest pwd: Guest). Imaged by K. Hardy and M. Leclerc, ANU.

Nonu site. Feldspathic temper sand that contains abundant clinopyroxene no biotite.


References:

239 Tanga, PNG, 2004 (Dickinson, W.)